Question about 1999 Cadillac DeVille

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Car wont idle well

My 99 cadillac deville seems to be having a problem with idling. the engine races up and down when the car is at a stand still and it sometimes goes off when moving at slow speeds.

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  • Prin60115 Mar 14, 2009

    My car won't idle well either especially if its gotten a little hot. I have noticed idling while the car is like 205 temp for coolant and it shuts off and the red oil light comes on. If I brake to idle it will kill as well.

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  • 135 Answers

Have throttle position switch checked and idle control valve checked.

Posted on May 19, 2009

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